SYSTEMS AND METHODS FOR DUAL-CONNECTIVITY SPLIT-BEARER PACKET MANAGEMENT

    公开(公告)号:US20230156842A1

    公开(公告)日:2023-05-18

    申请号:US18053532

    申请日:2022-11-08

    CPC classification number: H04W76/16 H04W28/12 H04W92/20

    Abstract: Systems and methods for dual-connectivity split-bearer packet management are presented. In one embodiment, a dual-connectivity, split-bearer base station, comprises: at least one centralized unit (CU) comprising a CU-CP) and at least one CU-UP; at least one DU coupled to the at least one CU-UP, wherein the at least one DU is coupled to one or more RUs configured as a first cell group to establish a first radio link for communicating with UE within a wireless coverage area; an eNodeB coupled to the at least one CU-UP, wherein the eNodeB comprises one or more RPs configured as a second cell group to establish a second radio link for communicating with UE within the wireless coverage area; and a traffic split controller configured to selectively direct PDCP packets to either the DU or the eNodeB as a function of packet delay times associated with the DU and the eNodeB.

    Physical cell identifier collision detection

    公开(公告)号:US11357063B2

    公开(公告)日:2022-06-07

    申请号:US17019792

    申请日:2020-09-14

    Abstract: A base station for performing physical cell identifier (PCI) collision detection. The base station includes at least one processor configured to determine whether a PCI in a radio resource control (RRC) re-establishment message is the same as a PCI used by a cell implemented by the base station. The at least one processor is also configured to determine whether a cell radio network temporary identifier (C-RNTI) in the RRC Re-establishment message is outside a reserved range of C-RNTIs for the cell. The at least one processor is also configured to identify a possible PCI collision for the cell when (1) the PCI in the RRC Re-establishment message is the same as a PCI used by the cell; and (2) the C-RNTI in the RRC Re-establishment message is outside the reserved range of C-RNTIs for the cell.

    FRAGMENTING PUBLIC WARNING SYSTEM MESSAGES IN A WIRELESS SYSTEM

    公开(公告)号:US20240106554A1

    公开(公告)日:2024-03-28

    申请号:US18471172

    申请日:2023-09-20

    CPC classification number: H04H20/59 H04H20/71 H04L5/0044 H04W4/90

    Abstract: A base station includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a controller communicatively coupled to the plurality of RUs via a fronthaul interface. The controller is configured to receive a public warning system (PWS) alert message. The controller is also configured to determine a number of bytes, based on a channel bandwidth of a wireless channel used by the base station, for each of a plurality of system information block messages. The plurality of system information block messages are broadcast wirelessly to the at least one UE.

    Selecting a physical cell identifier in a small cell without using radio environment monitoring

    公开(公告)号:US11696151B2

    公开(公告)日:2023-07-04

    申请号:US17100632

    申请日:2020-11-20

    CPC classification number: H04W16/22 H04W84/045

    Abstract: A small cell for selecting a physical cell identifier (PCI) includes at least one processor configured to determine a provisioned list of PCI values from a management system. The at least one processor is also configured to sort the PCI values in the provisioned list into a sorted list based on at least one predetermined pattern and modulo X values of the PCI values, where X is a predetermined integer. The at least one processor is also configured to determine an index for each sector implemented by the small cell based on a sector ID for the sector. The at least one processor is also configured to select, for each sector implemented by the small cell, a PCI value from the sorted list based on a sector ID of the sector.

    SELECTING A PHYSICAL CELL IDENTIFIER IN A SMALL CELL WITHOUT USING RADIO ENVIRONMENT MONITORING

    公开(公告)号:US20210195432A1

    公开(公告)日:2021-06-24

    申请号:US17100632

    申请日:2020-11-20

    Abstract: A small cell for selecting a physical cell identifier (PCI) includes at least one processor configured to determine a provisioned list of PCI values from a management system. The at least one processor is also configured to sort the PCI values in the provisioned list into a sorted list based on at least one predetermined pattern and modulo X values of the PCI values, where X is a predetermined integer. The at least one processor is also configured to determine an index for each sector implemented by the small cell based on a sector ID for the sector. The at least one processor is also configured to select, for each sector implemented by the small cell, a PCI value from the sorted list based on a sector ID of the sector.

    PHYSICAL CELL IDENTIFIER COLLISION DETECTION

    公开(公告)号:US20210084698A1

    公开(公告)日:2021-03-18

    申请号:US17019792

    申请日:2020-09-14

    Abstract: A base station for performing physical cell identifier (PCI) collision detection. The base station includes at least one processor configured to determine whether a PCI in a radio resource control (RRC) re-establishment message is the same as a PCI used by a cell implemented by the base station. The at least one processor is also configured to determine whether a cell radio network temporary identifier (C-RNTI) in the RRC Re-establishment message is outside a reserved range of C-RNTIs for the cell. The at least one processor is also configured to identify a possible PCI collision for the cell when (1) the PCI in the RRC Re-establishment message is the same as a PCI used by the cell; and (2) the C-RNTI in the RRC Re-establishment message is outside the reserved range of C-RNTIs for the cell.

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